Guins Excavating Service

Guin's was hired to excavate and grade an area with specific dimensions. It is not correct and they will not reply to fix it.Contracted with Guin's in September to grade an area with specific dimensions. We met with them a couple of times prior to the job to review the specifications. Payment was made upon their certification that the job was completed to spec. They told us if there was any issue to call and they'd come right back out. The area was measured after job completion and it was not to spec. Have attempted at least a dozen times to call, text but no reply. Payment was made to owner (Mr. Guin) by personal check.Desired Settlementwe would like the vendor to complete the job